Home / 8,472-18,122

Finding the Third Proportional to 8,472 and 18,122

Calculator

Solution

The third proportional to 8,472 and 18,122 is: 38,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472 : 18,122 = 18,122 : x
  2. Step 2: Convert to fraction form
    8,472/18,122 = 18,122/x
  3. Step 3: Cross multiply
    8,472x = 18,122 × 18,122
  4. Step 4: Simplify right side
    8,472x = 328,406,884
  5. Step 5: Solve for x
    x = 328,406,884/8,472
  6. Step 6: Final answer
    x = 38,763.80

Related Problems

Find third proportional to 4,236 and 9,061
Half scale
Find third proportional to 16,944 and 36,244
Double scale
Find third proportional to 8,474 and 18,126
Similar ratio
Find third proportional to 12,708 and 27,183
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.